Evaluation on the LPG fuel system performance using DC type fuel pump in an LPLi engine

Ju Won Kim, Cha Lee Myung, Simsoo Park

Research output: Contribution to conferencePaperpeer-review

Abstract

LPG is considered one of the most promising alternative gaseous fuels because of its potential emission reduction and relatively low fuel price compared to gasoline. The liquid phase LPG injection (LPLi) system could achieve high power and clean exhaust emissions with more precise injection control. To supply the liquid LPG in fuel injectors and fuel rail, a pump module is required. This study has focused on the development of DC turbine type LPLi pump considering discharged flow rate, cavitation, rerurnless fuel system in rig and real engine application. The discharged flow rate of turbine pump was examined with various fuel blends of LPG. The experimental results of the discharged flow rate of turbine type fuel pump have equivalent performance using summer season LPG fuel compared to BLDC one. The cause of pressure drop has been thought as the cavitation phenomena at high speed impeller component. This study investigates the cavitation phenomena in DC turbine type fuel pump with analyzing pressure distribution in various pump locations using cavitation test rig. The test results were validated by simulation tool by CFX. Finally the suitability of rerurnless fuel system was assessed with specially designed LPG chamber and real LPLi engine application.

Original languageEnglish
Pages877-883
Number of pages7
Publication statusPublished - 2008
Event7th International Conference on Modeling and Diagnostics for Advanced Engine Systems, COMODIA 2008 - Sapporo, Japan
Duration: 2008 Jul 282008 Jul 31

Other

Other7th International Conference on Modeling and Diagnostics for Advanced Engine Systems, COMODIA 2008
CountryJapan
CitySapporo
Period08/7/2808/7/31

Keywords

  • Brushed turbine pump
  • Computational fluid dynamics (CFD)
  • LPG
  • Liquid phase LPG injection (LPLi)
  • Return type
  • Semi-return type

ASJC Scopus subject areas

  • Automotive Engineering
  • Control and Systems Engineering
  • Modelling and Simulation

Fingerprint Dive into the research topics of 'Evaluation on the LPG fuel system performance using DC type fuel pump in an LPLi engine'. Together they form a unique fingerprint.

Cite this